You could actually put some thought into what you devote the energy to, and if wanting to do a blockchain based system, run Stellar or Ethereum nodes. Though they don’t use Proof of Work, so it would not use that much energy, relatively. You could offer supercomputing as a service that run batch jobs during the peak hours though.
That is just commercial electricity use. The issue is about what to do with spare power which appears sporadically, without warning. It wouldn’t be efficient or really possible to run a server farm which only switches on when power is cheap, the main power draw is cooling which is required 24/7.
You could actually put some thought into what you devote the energy to, and if wanting to do a blockchain based system, run Stellar or Ethereum nodes. Though they don’t use Proof of Work, so it would not use that much energy, relatively. You could offer supercomputing as a service that run batch jobs during the peak hours though.
That is just commercial electricity use. The issue is about what to do with spare power which appears sporadically, without warning. It wouldn’t be efficient or really possible to run a server farm which only switches on when power is cheap, the main power draw is cooling which is required 24/7.